Comparison of two different types of molar distalization appliance
Yükleniyor...
Tarih
2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Dicle Üniversitesi Diş Hekimliği Fakültesi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Aims: The aim of this study was to examine the clinical efficacy of Modified Veltri (MV) and first class (FC) appliances, to
investigate the effect on skeletal teeth and soft tissues in the patients and to compare the findings obtained.
Methods: The study included 40 individuals aged between 12 and 16 years with class II malocclusion (ANB <6o
), dental
crowding not requiring extraction, and no congenital tooth deficiency. MV and FC appliances were applied to 20 and 20
individuals, respectively. At the beginning of the study, at the end of distalization and three months after the reinforcement
appliance was applied, cephalometric X-rays and plaster models were taken from the individuals and analyzed. The statistical
significance of the changes that occurred during the distalization and reinforcement periods were evaluated by independent
student’s t test for each group, and the significance between the groups was checked by paired Student’s t test.
Results: In the MV and FC groups, molar distalization was achieved in a similar time (4.29±0.97, 4.20±0.86). Skeletal changes
were observed only in the MV group in SNB, ANB, SNGoGn, FMA (p<0.05) and B-PTV (p<0.01) values. In the first molar
tooth, the MV group showed -2.16 mm distalization, 1.88 mm intrusion and 5.21o
distal tipping, while the FC group showed
-2.42 mm distalization and 1.19o distal tipping. During the consolidation period, 1.13 mm recurrence of distalization was
observed in the MV group. In the MV group, overjet increased by 2.28 mm and overbite decreased by 1.89 mm. In the FC
group, the overjet increased by 1.32 mm and the overbite decreased by 0.94 mm. After soft tissue distalization, Lu-E and Li-E
values decreased by 1.45 mm and 1.01 mm in the MV group and by 1.38 mm and 1.30 mm in the FC group.
Conclusion: In this study, although MV and FC appliances provided a similar amount of distalization in a similar amount of
time, recurrence was observed in the MV group during the reinforcement period. In addition, loss of anchorage was observed
more in the MV group. Anchorage loss should be considered in the clinical application of MV and FC appliances.
Açıklama
Anahtar Kelimeler
Distalization, Veltri, First class
Kaynak
Dicle Dental Journal
WoS Q Değeri
Scopus Q Değeri
Cilt
25
Sayı
2
Künye
Oruç, K., Kama, J. D. ve Özer, T. (2024). Comparison of two different types of molar distalization appliance. Dicle Dental Journal, 25(2), 46-57.
